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Synoptic table of the functions able to be selected > < Checking conditions for the self-diagnosis

Leon Mk2

Connection of the fault readerV.A.G 1551 and function selection
Connection of the fault reader -V.A.G 1551- and function selection
  Note!
In the place of the -V.A.G 1551- the vehicle's system checking unit -V.A.G 1552- may also be used, although the data can not be printed.
   
Connecting the -V.A.G 1551-
With the ignition off, connect the -V.A.G 1551- with the cable -V.A.G 1551/3A- to the diagnosis connector in the following way:
–  Remove the package compartment of the driver side.
–  The connector for diagnosis is on top of the fuse box.
–  Connect the fault reader with the cable -V.A.G 1551/3A-
  E01-0004
Indication on the display:
  
V.A.G - Self-diagnosis              HELP
       1-Fast data transmission*
*indicated alternately
  Note!
If no indication appears on the display, check the voltage in the fault reader -V.A.G 1551- according to the current circuit diagram.
Selecting function
  Note!
t  Using the HELP key of the -V.A.G 1551-, depending on the programme, other indications of use can be printed.
t  The key → is used to continue with the process of the programme.
t  The PRINT key is used to turn on the printer (a light comes on on the key).
–  Turn on the ignition.
–  Press the key 1 for “Fast Data Transmission” mode.
  
V.A.G - Self-diagnosis              HELP
       2-Emission of intermittent codes*
Indication on the display:
–  Press keys 0 and 8 to enter the address code of the vehicle system “Electronics of the air conditioning and heating”.
  
Fast Data Transmission              HELP
Enter the address code XX
Indication on the display:
–  Confirm entry with Q key.
  
Fast Data Transmission                Q 
08 Electronics air conditioning and heating
Indication on the display after entering the address code 08:
  
Fast Data transmission                  
Verifier emits address code 08
Indication on the display:
The identification number of the control unit appears, such as, for instance:
  
Wait                                    

      

      

    
      

      

    
t 
           Vehicle: left hand or right hand drive -6K0 959 291-
t 
           Autoclima = system designation 220 “air conditioning and heating”.
t 
           Autoclima = system designation 110 “heating”
t 
           X2.06 = software version
t 
           Coding: no coding 00000
t 
           WSC = workshop code
 
      Note!

      		 
      
    
6K0 959 291   AUTOCLIMA 220    X2.06   →
Code 00000                     WSC 00000

      

      

    
      

      

    
If any of the fault indications appear on the display, the possible causes may be printed by using the HELP key.

      		 
      
    
Fats Data Transmission              HELP
The control unit does not answer        

      

      

    
      

      

    
(The ignition must be on!)

      		 
      
    
Fast Data Transmission              HELP
Cable K does not connect to the positive pole

      

      

    
      

      

    
t 
           Faults occur at the beginning or during the programme (external interference?).

      		 
      
    
Fast data transmission                 →
No signal in the control unit           

      

      

    
      

      

    
– 
          
– 
          Check the diagnosis cables, the voltage supply and the ground connection.
– 
          After eliminating the possible causes of the faults, enter address code 08 once more for “electronics of the air conditioning and heating” and confirm with Q key.

      		 
      
    
Fast Data Transmission                 →
Error in data structure                 

      

      

    
      

      

    
Indication on the display after entering address code 08:

      		 
      
    
Fast Data Transmission                  
Checker issues address code 08          

      

      

    
      

      

    
The identification number of the control unit is indicated, such as, for instance:
– 
          Press the → key

      		 
      
    
6K0 959 291      AUTOCLIMA 220       X01
Coding 00000                   WSC 00000

      

      

    
      

      

    
Indication on the display (Function selection, e.g.: 02 - Consult fault memory):
 
      Note!
After pressing the HELP key, a list of the possible functions is printed:

      		 
      
    
6K0 959 291   AUTOCLIMA 220    X2.06   →
Code 00000                     WSC 00000
Fats Data Transmission              HELP
The control unit does not answer        
Fast data transmission                 →
No signal in the control unit           
Fast Data Transmission              HELP
Select function XX                      

      

      

    


Synoptic table of the functions able to be selected >
< Checking conditions for the self-diagnosis